The Great Mouse Detective DVD release in the United States stands as a classic family animated film from Disney that transports viewers to the gaslit streets of Victorian London where every shadow hides a secret and every mouse has a role to play in the grand machinations of the city. The narrative centers on a brave young mouse girl named Olivia Flaversham whose toymaker father is suddenly seized in the dead of night by a sinister peglegged bat named Fidget a loyal operative of the treacherous rat genius Professor Ratigan who plots to usurp the throne. In her desperation Olivia flees to the famed detective Basil of Baker Street who resides in the mouse parallel of Sherlock Holmes residence and together with his steadfast mouse sidekick Dawson they embark on a perilous investigation that begins with a simple missing person case but quickly spirals into a national crisis as they discover the abduction is merely a piece of a grander plot designed to overthrow the Crown and destabilize the monarchy. Basil’s keen powers of deduction his talent for disguise and his use of clever mouse sized gadgetry allow him to outwit the forces of evil while the story underscores themes of courage loyalty and the triumph of good over adversity making it an enduring entry in the family genre. Supplementary material included with the DVD and related online entries such as a video game added to iOctavio.com on 2008-10-13 further extend the world of Basil of Baker Street offering fans new ways to engage with the mystery beyond the screen.